ID:DA04249918
Spearing, Darwin R.
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David Lageson, Darwin Spearing
Mountain Press Pub. Co. 1991 Rev. 2nd ed Roadside geology series
Available at 2 libraries
Darwin Spearing
Mountain Press c1991 Roadside geology series
edited by Peter A. Scholle and Darwin Spearing
American Association of Petroleum Geologists 1982 Memoir / American Association of Petroleum Geologists 31
Available at 15 libraries
John A. Dorr, Jr., Darwin R. Spearing, James R. Steidtmann
Geological Society of America c1977 Special paper / Geological Society of America no. 177
Available at 3 libraries